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<li class="navelem"><a class="el" href="namespacefaiss.html">faiss</a></li><li class="navelem"><a class="el" href="structfaiss_1_1IndexIVFPQCompact.html">IndexIVFPQCompact</a></li>  </ul>
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<p><code>#include &lt;<a class="el" href="IndexIVFPQ_8h_source.html">IndexIVFPQ.h</a>&gt;</code></p>
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Inheritance diagram for faiss::IndexIVFPQCompact:</div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:ab2698c5d65644a171c53ffe39e420b70"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70">Alloc_type_t</a> { <a class="el" href="structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70a3d58d7b26146791f0fe34b35a9b0fd95">Alloc_type_none</a>, 
<a class="el" href="structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70acf2d6ba8878a2778383adc32593ba8e6">Alloc_type_new</a>, 
<a class="el" href="structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70a38c1b1ed9ebdbd4b0047be13080094bb">Alloc_type_mmap</a>
 }</td></tr>
<tr class="memdesc:ab2698c5d65644a171c53ffe39e420b70"><td class="mdescLeft">&#160;</td><td class="mdescRight">how were the compact tables allocated?  <a href="structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70">More...</a><br/></td></tr>
<tr class="separator:ab2698c5d65644a171c53ffe39e420b70"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pub_types_structfaiss_1_1Index"><td colspan="2" onclick="javascript:toggleInherit('pub_types_structfaiss_1_1Index')"><img src="closed.png" alt="-"/>&#160;Public Types inherited from <a class="el" href="structfaiss_1_1Index.html">faiss::Index</a></td></tr>
<tr class="memitem:a040c6aed1f224f3ea7bf58eebc0c31a4 inherit pub_types_structfaiss_1_1Index"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a040c6aed1f224f3ea7bf58eebc0c31a4"></a>
typedef long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a></td></tr>
<tr class="memdesc:a040c6aed1f224f3ea7bf58eebc0c31a4 inherit pub_types_structfaiss_1_1Index"><td class="mdescLeft">&#160;</td><td class="mdescRight">all indices are this type <br/></td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a4945681896a953a70d45b9c76de49f66"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a4945681896a953a70d45b9c76de49f66"></a>
&#160;</td><td class="memItemRight" valign="bottom"><b>IndexIVFPQCompact</b> (const <a class="el" href="structfaiss_1_1IndexIVFPQ.html">IndexIVFPQ</a> &amp;other)</td></tr>
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<tr class="memitem:a583dd638a00cb9246ac7b54ee6d65f95"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQCompact.html#a583dd638a00cb9246ac7b54ee6d65f95">search_knn_with_key</a> (size_t nx, const float *qx, const long *keys, const float *coarse_dis, <a class="el" href="structfaiss_1_1HeapArray.html">float_maxheap_array_t</a> *res, bool store_pairs=false) const override</td></tr>
<tr class="separator:a583dd638a00cb9246ac7b54ee6d65f95"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ade7b46bbbcaf244ad680104380afb1b8"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ade7b46bbbcaf244ad680104380afb1b8"></a>
virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQCompact.html#ade7b46bbbcaf244ad680104380afb1b8">add</a> (<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a>, const float *) override</td></tr>
<tr class="memdesc:ade7b46bbbcaf244ad680104380afb1b8"><td class="mdescLeft">&#160;</td><td class="mdescRight">the three following functions will fail at runtime <br/></td></tr>
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<tr class="memitem:a8f5eccfb4d5e4098ff6c00acb3bc40a1"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a8f5eccfb4d5e4098ff6c00acb3bc40a1"></a>
virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQCompact.html#a8f5eccfb4d5e4098ff6c00acb3bc40a1">reset</a> () override</td></tr>
<tr class="memdesc:a8f5eccfb4d5e4098ff6c00acb3bc40a1"><td class="mdescLeft">&#160;</td><td class="mdescRight">removes all elements from the database. <br/></td></tr>
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virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQCompact.html#a0ef8132fae22a50616fe1201c8b20588">train</a> (<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a>, const float *) override</td></tr>
<tr class="memdesc:a0ef8132fae22a50616fe1201c8b20588"><td class="mdescLeft">&#160;</td><td class="mdescRight">Trains the quantizer and calls train_residual to train sub-quantizers. <br/></td></tr>
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<tr class="inherit_header pub_methods_structfaiss_1_1IndexIVFPQ"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_structfaiss_1_1IndexIVFPQ')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a></td></tr>
<tr class="memitem:a38e177f44798228fe81a0c35b86080fc inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a38e177f44798228fe81a0c35b86080fc"></a>
&#160;</td><td class="memItemRight" valign="bottom"><b>IndexIVFPQ</b> (<a class="el" href="structfaiss_1_1Index.html">Index</a> *<a class="el" href="structfaiss_1_1IndexIVF.html#a4b40cc7a70dff41196a3b8769586667a">quantizer</a>, size_t <a class="el" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, size_t <a class="el" href="structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b">nlist</a>, size_t M, size_t nbits_per_idx)</td></tr>
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virtual void&#160;</td><td class="memItemRight" valign="bottom"><b>set_typename</b> () override</td></tr>
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<tr class="memitem:a981c2748bfbd9b018494f119279a0342 inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a981c2748bfbd9b018494f119279a0342">add_with_ids</a> (<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n, const float *x, const long *xids=nullptr) override</td></tr>
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<tr class="memitem:ac0cb8421b9885d691696d2ff4f76894b inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#ac0cb8421b9885d691696d2ff4f76894b">add_core_o</a> (<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n, const float *x, const long *xids, float *residuals_2, const long *precomputed_idx=nullptr)</td></tr>
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<tr class="memitem:afa7c9a7ae0316d2a05acb60ab2b7a31a inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#afa7c9a7ae0316d2a05acb60ab2b7a31a">search</a> (<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n, const float *x, <a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> k, float *distances, <a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> *labels) const override</td></tr>
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<tr class="memitem:ad9fa584ac2e12e9b9bb25a737efcc4d9 inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top">virtual long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#ad9fa584ac2e12e9b9bb25a737efcc4d9">remove_ids</a> (const <a class="el" href="structfaiss_1_1IDSelector.html">IDSelector</a> &amp;sel) override</td></tr>
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virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#af6565a5d8bab7be3df19c50d235bd662">train_residual</a> (<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n, const float *x) override</td></tr>
<tr class="memdesc:af6565a5d8bab7be3df19c50d235bd662 inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">trains the product quantizer <br/></td></tr>
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void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a4e06f04853dcb424dc393de5f641e917">train_residual_o</a> (<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n, const float *x, float *residuals_2)</td></tr>
<tr class="memdesc:a4e06f04853dcb424dc393de5f641e917 inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">same as train_residual, also output 2nd level residuals <br/></td></tr>
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<tr class="memitem:a1df10e9e5f4ff0dabf283f19ad94bbd4 inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a1df10e9e5f4ff0dabf283f19ad94bbd4">reconstruct_n</a> (<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> i0, <a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> ni, float *recons) const override</td></tr>
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<tr class="memitem:a28ce697b1381eb7e7d7d25774a25e175 inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a28ce697b1381eb7e7d7d25774a25e175">reconstruct</a> (<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> key, float *recons) const override</td></tr>
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<tr class="memitem:aee355b57acde203a3caed46a93e16a3c inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#aee355b57acde203a3caed46a93e16a3c">find_duplicates</a> (<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> *<a class="el" href="structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d">ids</a>, size_t *lims) const </td></tr>
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void&#160;</td><td class="memItemRight" valign="bottom"><b>encode</b> (long key, const float *x, uint8_t *code) const </td></tr>
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<tr class="memitem:a947c6b15c2dde086a8e638fa69b7a7a6 inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a947c6b15c2dde086a8e638fa69b7a7a6"></a>
void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a947c6b15c2dde086a8e638fa69b7a7a6">encode_multiple</a> (size_t n, const long *keys, const float *x, uint8_t *codes) const </td></tr>
<tr class="memdesc:a947c6b15c2dde086a8e638fa69b7a7a6 inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">same as encode, for multiple points at once <br/></td></tr>
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<tr class="memitem:ad99c215aeaf92e995cb97f4044c4d267 inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#ad99c215aeaf92e995cb97f4044c4d267">precompute_table</a> ()</td></tr>
<tr class="memdesc:ad99c215aeaf92e995cb97f4044c4d267 inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">build precomputed table  <a href="#ad99c215aeaf92e995cb97f4044c4d267">More...</a><br/></td></tr>
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<tr class="memitem:a6b8964e2da609a9261a8a35ae347ecb2 inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6b8964e2da609a9261a8a35ae347ecb2"></a>
virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a6b8964e2da609a9261a8a35ae347ecb2">merge_from_residuals</a> (<a class="el" href="structfaiss_1_1IndexIVF.html">IndexIVF</a> &amp;other) override</td></tr>
<tr class="memdesc:a6b8964e2da609a9261a8a35ae347ecb2 inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">used to implement merging <br/></td></tr>
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<tr class="memitem:af278c710f6c7605f59e1da48a6dea37a inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#af278c710f6c7605f59e1da48a6dea37a">copy_subset_to</a> (<a class="el" href="structfaiss_1_1IndexIVFPQ.html">IndexIVFPQ</a> &amp;other, int subset_type, long a1, long a2) const </td></tr>
<tr class="separator:af278c710f6c7605f59e1da48a6dea37a inherit pub_methods_structfaiss_1_1IndexIVFPQ"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pub_methods_structfaiss_1_1IndexIVF"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_structfaiss_1_1IndexIVF')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="structfaiss_1_1IndexIVF.html">faiss::IndexIVF</a></td></tr>
<tr class="memitem:a617f8c4ff40619d141c5c21dbf758ddf inherit pub_methods_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVF.html#a617f8c4ff40619d141c5c21dbf758ddf">IndexIVF</a> (<a class="el" href="structfaiss_1_1Index.html">Index</a> *<a class="el" href="structfaiss_1_1IndexIVF.html#a4b40cc7a70dff41196a3b8769586667a">quantizer</a>, size_t <a class="el" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, size_t <a class="el" href="structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b">nlist</a>, <a class="el" href="namespacefaiss.html#afd12191c638da74760ff397cf319752c">MetricType</a> metric=METRIC_INNER_PRODUCT)</td></tr>
<tr class="separator:a617f8c4ff40619d141c5c21dbf758ddf inherit pub_methods_structfaiss_1_1IndexIVF"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0f22cc237c30c935df5b6560aecf8f01 inherit pub_methods_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVF.html#a0f22cc237c30c935df5b6560aecf8f01">merge_from</a> (<a class="el" href="structfaiss_1_1IndexIVF.html">IndexIVF</a> &amp;other, <a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> add_id)</td></tr>
<tr class="separator:a0f22cc237c30c935df5b6560aecf8f01 inherit pub_methods_structfaiss_1_1IndexIVF"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aae6f0fae1f0721af3aa0b5ea1bd9980d inherit pub_methods_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aae6f0fae1f0721af3aa0b5ea1bd9980d"></a>
void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVF.html#aae6f0fae1f0721af3aa0b5ea1bd9980d">make_direct_map</a> ()</td></tr>
<tr class="memdesc:aae6f0fae1f0721af3aa0b5ea1bd9980d inherit pub_methods_structfaiss_1_1IndexIVF"><td class="mdescLeft">&#160;</td><td class="mdescRight">intialize a direct map <br/></td></tr>
<tr class="separator:aae6f0fae1f0721af3aa0b5ea1bd9980d inherit pub_methods_structfaiss_1_1IndexIVF"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aeab84d4edf2cf9747c923e1a8395d9f3 inherit pub_methods_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aeab84d4edf2cf9747c923e1a8395d9f3"></a>
double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVF.html#aeab84d4edf2cf9747c923e1a8395d9f3">imbalance_factor</a> () const </td></tr>
<tr class="memdesc:aeab84d4edf2cf9747c923e1a8395d9f3 inherit pub_methods_structfaiss_1_1IndexIVF"><td class="mdescLeft">&#160;</td><td class="mdescRight">1= perfectly balanced, &gt;1: imbalanced <br/></td></tr>
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<tr class="memitem:a513dfec3a250f08a9fdd18a24178e6bb inherit pub_methods_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a513dfec3a250f08a9fdd18a24178e6bb"></a>
void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVF.html#a513dfec3a250f08a9fdd18a24178e6bb">print_stats</a> () const </td></tr>
<tr class="memdesc:a513dfec3a250f08a9fdd18a24178e6bb inherit pub_methods_structfaiss_1_1IndexIVF"><td class="mdescLeft">&#160;</td><td class="mdescRight">display some stats about the inverted lists <br/></td></tr>
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<tr class="inherit_header pub_methods_structfaiss_1_1Index"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_structfaiss_1_1Index')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="structfaiss_1_1Index.html">faiss::Index</a></td></tr>
<tr class="memitem:a18475cb29370bd6ac3c9f41d39f2e8ec inherit pub_methods_structfaiss_1_1Index"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a18475cb29370bd6ac3c9f41d39f2e8ec"></a>
&#160;</td><td class="memItemRight" valign="bottom"><b>Index</b> (<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> <a class="el" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>=0, <a class="el" href="namespacefaiss.html#afd12191c638da74760ff397cf319752c">MetricType</a> metric=METRIC_INNER_PRODUCT)</td></tr>
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<tr class="memitem:a236897832a58dbb205e2d662c1929fb1 inherit pub_methods_structfaiss_1_1Index"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1Index.html#a236897832a58dbb205e2d662c1929fb1">range_search</a> (<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n, const float *x, float radius, <a class="el" href="structfaiss_1_1RangeSearchResult.html">RangeSearchResult</a> *result) const </td></tr>
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<tr class="memitem:a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c inherit pub_methods_structfaiss_1_1Index"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c">assign</a> (<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n, const float *x, <a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> *labels, <a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> k=1)</td></tr>
<tr class="separator:a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c inherit pub_methods_structfaiss_1_1Index"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aaae77608bbda70b1098897e9167a82f9 inherit pub_methods_structfaiss_1_1Index"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1Index.html#aaae77608bbda70b1098897e9167a82f9">compute_residual</a> (const float *x, float *residual, <a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> key) const </td></tr>
<tr class="separator:aaae77608bbda70b1098897e9167a82f9 inherit pub_methods_structfaiss_1_1Index"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a373c30e3d87d1d4e616f450d87152b1a inherit pub_methods_structfaiss_1_1Index"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1Index.html#a373c30e3d87d1d4e616f450d87152b1a">display</a> () const </td></tr>
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<tr class="memitem:aae095c6209a16347262408b3346193a3 inherit pub_methods_structfaiss_1_1Index"><td class="memItemLeft" align="right" valign="top">virtual std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1Index.html#aae095c6209a16347262408b3346193a3">get_typename</a> () const </td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:a05d530a222763db6aa1f939afa1cf00e"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a05d530a222763db6aa1f939afa1cf00e"></a>
<a class="el" href="structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70">Alloc_type_t</a>&#160;</td><td class="memItemRight" valign="bottom"><b>alloc_type</b></td></tr>
<tr class="separator:a05d530a222763db6aa1f939afa1cf00e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a146ccc5a05aed1d2e96df8c1d3f7663d"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a146ccc5a05aed1d2e96df8c1d3f7663d"></a>
uint32_t *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQCompact.html#a146ccc5a05aed1d2e96df8c1d3f7663d">limits</a></td></tr>
<tr class="memdesc:a146ccc5a05aed1d2e96df8c1d3f7663d"><td class="mdescLeft">&#160;</td><td class="mdescRight">size nlist + 1 <br/></td></tr>
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<tr class="memitem:a1fa62ed464c15768479c92646ed484c7"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1fa62ed464c15768479c92646ed484c7"></a>
uint32_t *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQCompact.html#a1fa62ed464c15768479c92646ed484c7">compact_ids</a></td></tr>
<tr class="memdesc:a1fa62ed464c15768479c92646ed484c7"><td class="mdescLeft">&#160;</td><td class="mdescRight">size ntotal <br/></td></tr>
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<tr class="memitem:aaaf53cae0e47baf3fb1199ce4d789694"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aaaf53cae0e47baf3fb1199ce4d789694"></a>
uint8_t *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQCompact.html#aaaf53cae0e47baf3fb1199ce4d789694">compact_codes</a></td></tr>
<tr class="memdesc:aaaf53cae0e47baf3fb1199ce4d789694"><td class="mdescLeft">&#160;</td><td class="mdescRight">size ntotal * code_size <br/></td></tr>
<tr class="separator:aaaf53cae0e47baf3fb1199ce4d789694"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4475475540d927234f5403779c5ef3d2"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a4475475540d927234f5403779c5ef3d2"></a>
char *&#160;</td><td class="memItemRight" valign="bottom"><b>mmap_buffer</b></td></tr>
<tr class="separator:a4475475540d927234f5403779c5ef3d2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a393a60d16d3aac347c69d3f01b832ff0"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a393a60d16d3aac347c69d3f01b832ff0"></a>
long&#160;</td><td class="memItemRight" valign="bottom"><b>mmap_length</b></td></tr>
<tr class="separator:a393a60d16d3aac347c69d3f01b832ff0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pub_attribs_structfaiss_1_1IndexIVFPQ"><td colspan="2" onclick="javascript:toggleInherit('pub_attribs_structfaiss_1_1IndexIVFPQ')"><img src="closed.png" alt="-"/>&#160;Public Attributes inherited from <a class="el" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a></td></tr>
<tr class="memitem:afd13b471df293ae5a6e895704c69a4c3 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="afd13b471df293ae5a6e895704c69a4c3"></a>
bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3">by_residual</a></td></tr>
<tr class="memdesc:afd13b471df293ae5a6e895704c69a4c3 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">Encode residual or plain vector? <br/></td></tr>
<tr class="separator:afd13b471df293ae5a6e895704c69a4c3 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1c66ff073c18a1edbe8444c24d870583 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1c66ff073c18a1edbe8444c24d870583"></a>
int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583">use_precomputed_table</a></td></tr>
<tr class="memdesc:a1c66ff073c18a1edbe8444c24d870583 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">if by_residual, build precompute tables <br/></td></tr>
<tr class="separator:a1c66ff073c18a1edbe8444c24d870583 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a31c6fb2faa4dadea4c0594338be7be90 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a31c6fb2faa4dadea4c0594338be7be90"></a>
size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a31c6fb2faa4dadea4c0594338be7be90">code_size</a></td></tr>
<tr class="memdesc:a31c6fb2faa4dadea4c0594338be7be90 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">code size per vector in bytes <br/></td></tr>
<tr class="separator:a31c6fb2faa4dadea4c0594338be7be90 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a007303be116c8da65b6d058e3fc77d16 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a007303be116c8da65b6d058e3fc77d16"></a>
<a class="el" href="structfaiss_1_1ProductQuantizer.html">ProductQuantizer</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">pq</a></td></tr>
<tr class="memdesc:a007303be116c8da65b6d058e3fc77d16 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">produces the codes <br/></td></tr>
<tr class="separator:a007303be116c8da65b6d058e3fc77d16 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9d5373633df7a9bec4de69400b9adeed inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a9d5373633df7a9bec4de69400b9adeed"></a>
bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a9d5373633df7a9bec4de69400b9adeed">do_polysemous_training</a></td></tr>
<tr class="memdesc:a9d5373633df7a9bec4de69400b9adeed inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">reorder PQ centroids after training? <br/></td></tr>
<tr class="separator:a9d5373633df7a9bec4de69400b9adeed inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2b14cbb5acb3fc28a4df8fde3f5567cd inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a2b14cbb5acb3fc28a4df8fde3f5567cd"></a>
<a class="el" href="structfaiss_1_1PolysemousTraining.html">PolysemousTraining</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a2b14cbb5acb3fc28a4df8fde3f5567cd">polysemous_training</a></td></tr>
<tr class="memdesc:a2b14cbb5acb3fc28a4df8fde3f5567cd inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">if NULL, use default <br/></td></tr>
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<tr class="memitem:a7430fc4fa030c96497abced3b68358d4 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7430fc4fa030c96497abced3b68358d4"></a>
size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a7430fc4fa030c96497abced3b68358d4">scan_table_threshold</a></td></tr>
<tr class="memdesc:a7430fc4fa030c96497abced3b68358d4 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">use table computation or on-the-fly? <br/></td></tr>
<tr class="separator:a7430fc4fa030c96497abced3b68358d4 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a77501995b3671e377102d2db1a93ade4 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a77501995b3671e377102d2db1a93ade4"></a>
size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a77501995b3671e377102d2db1a93ade4">max_codes</a></td></tr>
<tr class="memdesc:a77501995b3671e377102d2db1a93ade4 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">max nb of codes to visit to do a query <br/></td></tr>
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<tr class="memitem:a3093a0a3e128eafce6e0583b75e9662e inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3093a0a3e128eafce6e0583b75e9662e"></a>
int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a3093a0a3e128eafce6e0583b75e9662e">polysemous_ht</a></td></tr>
<tr class="memdesc:a3093a0a3e128eafce6e0583b75e9662e inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="mdescLeft">&#160;</td><td class="mdescRight">Hamming thresh for polysemous filtering. <br/></td></tr>
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<tr class="memitem:a0fa686cc6607c74bdaefede2e0d57805 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0fa686cc6607c74bdaefede2e0d57805"></a>
std::vector&lt; std::vector<br class="typebreak"/>
&lt; uint8_t &gt; &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>codes</b></td></tr>
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<tr class="memitem:a9b310195d610c3e326471b3758206b59 inherit pub_attribs_structfaiss_1_1IndexIVFPQ"><td class="memItemLeft" align="right" valign="top">std::vector&lt; float &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVFPQ.html#a9b310195d610c3e326471b3758206b59">precomputed_table</a></td></tr>
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<tr class="inherit_header pub_attribs_structfaiss_1_1IndexIVF"><td colspan="2" onclick="javascript:toggleInherit('pub_attribs_structfaiss_1_1IndexIVF')"><img src="closed.png" alt="-"/>&#160;Public Attributes inherited from <a class="el" href="structfaiss_1_1IndexIVF.html">faiss::IndexIVF</a></td></tr>
<tr class="memitem:ab38fde4c923abefc4185eb7450b5b95b inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab38fde4c923abefc4185eb7450b5b95b"></a>
size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b">nlist</a></td></tr>
<tr class="memdesc:ab38fde4c923abefc4185eb7450b5b95b inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="mdescLeft">&#160;</td><td class="mdescRight">number of possible key values <br/></td></tr>
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<tr class="memitem:affed235eadf27a13d753ee4d33a1dc58 inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="affed235eadf27a13d753ee4d33a1dc58"></a>
size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58">nprobe</a></td></tr>
<tr class="memdesc:affed235eadf27a13d753ee4d33a1dc58 inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="mdescLeft">&#160;</td><td class="mdescRight">number of probes at query time <br/></td></tr>
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<tr class="memitem:a4b40cc7a70dff41196a3b8769586667a inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a4b40cc7a70dff41196a3b8769586667a"></a>
<a class="el" href="structfaiss_1_1Index.html">Index</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVF.html#a4b40cc7a70dff41196a3b8769586667a">quantizer</a></td></tr>
<tr class="memdesc:a4b40cc7a70dff41196a3b8769586667a inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="mdescLeft">&#160;</td><td class="mdescRight">quantizer that maps vectors to inverted lists <br/></td></tr>
<tr class="separator:a4b40cc7a70dff41196a3b8769586667a inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a23ee7f75f8be4472a17778f2b33875de inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a23ee7f75f8be4472a17778f2b33875de"></a>
bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVF.html#a23ee7f75f8be4472a17778f2b33875de">quantizer_trains_alone</a></td></tr>
<tr class="memdesc:a23ee7f75f8be4472a17778f2b33875de inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="mdescLeft">&#160;</td><td class="mdescRight">just pass over the trainset to quantizer <br/></td></tr>
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<tr class="memitem:aed2e9757ad5f3c234fd8ad60175a2a73 inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aed2e9757ad5f3c234fd8ad60175a2a73"></a>
bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVF.html#aed2e9757ad5f3c234fd8ad60175a2a73">own_fields</a></td></tr>
<tr class="memdesc:aed2e9757ad5f3c234fd8ad60175a2a73 inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="mdescLeft">&#160;</td><td class="mdescRight">whether object owns the quantizer <br/></td></tr>
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<tr class="memitem:a9746bcd42ecec1501f221e918b25e8e7 inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a9746bcd42ecec1501f221e918b25e8e7"></a>
<a class="el" href="structfaiss_1_1ClusteringParameters.html">ClusteringParameters</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVF.html#a9746bcd42ecec1501f221e918b25e8e7">cp</a></td></tr>
<tr class="memdesc:a9746bcd42ecec1501f221e918b25e8e7 inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="mdescLeft">&#160;</td><td class="mdescRight">to override default clustering params <br/></td></tr>
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<tr class="memitem:af16d325f5bef22b2e5f90ceea796e80d inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="af16d325f5bef22b2e5f90ceea796e80d"></a>
std::vector&lt; std::vector&lt; long &gt; &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d">ids</a></td></tr>
<tr class="memdesc:af16d325f5bef22b2e5f90ceea796e80d inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="mdescLeft">&#160;</td><td class="mdescRight">Inverted lists for indexes. <br/></td></tr>
<tr class="separator:af16d325f5bef22b2e5f90ceea796e80d inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aedd0c14b5654295b291638ec7f9f9517 inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aedd0c14b5654295b291638ec7f9f9517"></a>
bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexIVF.html#aedd0c14b5654295b291638ec7f9f9517">maintain_direct_map</a></td></tr>
<tr class="memdesc:aedd0c14b5654295b291638ec7f9f9517 inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="mdescLeft">&#160;</td><td class="mdescRight">map for direct access to the elements. Enables <a class="el" href="structfaiss_1_1Index.html#aaef6f4132b1f390121ebb11058baf190">reconstruct()</a>. <br/></td></tr>
<tr class="separator:aedd0c14b5654295b291638ec7f9f9517 inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a59fcfc4625260315c6423adc21d31ce9 inherit pub_attribs_structfaiss_1_1IndexIVF"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a59fcfc4625260315c6423adc21d31ce9"></a>
std::vector&lt; long &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>direct_map</b></td></tr>
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<tr class="inherit_header pub_attribs_structfaiss_1_1Index"><td colspan="2" onclick="javascript:toggleInherit('pub_attribs_structfaiss_1_1Index')"><img src="closed.png" alt="-"/>&#160;Public Attributes inherited from <a class="el" href="structfaiss_1_1Index.html">faiss::Index</a></td></tr>
<tr class="memitem:a294b7b4efde95636baed8a6691f49018 inherit pub_attribs_structfaiss_1_1Index"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a294b7b4efde95636baed8a6691f49018"></a>
std::string&#160;</td><td class="memItemRight" valign="bottom"><b>index_typename</b></td></tr>
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<tr class="memitem:a2a002388d2c081c2dbab8508dcefe73d inherit pub_attribs_structfaiss_1_1Index"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a2a002388d2c081c2dbab8508dcefe73d"></a>
int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a></td></tr>
<tr class="memdesc:a2a002388d2c081c2dbab8508dcefe73d inherit pub_attribs_structfaiss_1_1Index"><td class="mdescLeft">&#160;</td><td class="mdescRight">vector dimension <br/></td></tr>
<tr class="separator:a2a002388d2c081c2dbab8508dcefe73d inherit pub_attribs_structfaiss_1_1Index"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6970683faa021b7a6f1a0865c0d4eccd inherit pub_attribs_structfaiss_1_1Index"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6970683faa021b7a6f1a0865c0d4eccd"></a>
<a class="el" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a></td></tr>
<tr class="memdesc:a6970683faa021b7a6f1a0865c0d4eccd inherit pub_attribs_structfaiss_1_1Index"><td class="mdescLeft">&#160;</td><td class="mdescRight">total nb of indexed vectors <br/></td></tr>
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<tr class="memitem:a5590d847c5c2b958affd2a05e58a6f23 inherit pub_attribs_structfaiss_1_1Index"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a5590d847c5c2b958affd2a05e58a6f23"></a>
bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a></td></tr>
<tr class="memdesc:a5590d847c5c2b958affd2a05e58a6f23 inherit pub_attribs_structfaiss_1_1Index"><td class="mdescLeft">&#160;</td><td class="mdescRight">verbosity level <br/></td></tr>
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<tr class="memitem:a6e92732617c4dbe364e7678dd8773a7f inherit pub_attribs_structfaiss_1_1Index"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6e92732617c4dbe364e7678dd8773a7f"></a>
bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a></td></tr>
<tr class="memdesc:a6e92732617c4dbe364e7678dd8773a7f inherit pub_attribs_structfaiss_1_1Index"><td class="mdescLeft">&#160;</td><td class="mdescRight">set if the <a class="el" href="structfaiss_1_1Index.html">Index</a> does not require training, or if training is done already <br/></td></tr>
<tr class="separator:a6e92732617c4dbe364e7678dd8773a7f inherit pub_attribs_structfaiss_1_1Index"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8e18f641854b2bde83ecff0a2f9a6f4e inherit pub_attribs_structfaiss_1_1Index"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a8e18f641854b2bde83ecff0a2f9a6f4e"></a>
<a class="el" href="namespacefaiss.html#afd12191c638da74760ff397cf319752c">MetricType</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">metric_type</a></td></tr>
<tr class="memdesc:a8e18f641854b2bde83ecff0a2f9a6f4e inherit pub_attribs_structfaiss_1_1Index"><td class="mdescLeft">&#160;</td><td class="mdescRight">type of metric this index uses for search <br/></td></tr>
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</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p><a class="el" href="structfaiss_1_1Index.html">Index</a> with 32-bit ids and flat tables. Must be constructed from an exisiting <a class="el" href="structfaiss_1_1IndexIVFPQ.html">IndexIVFPQ</a>. Cannot be copy-constructed/assigned. The actual data is stored in the compact_* tables, the ids and codes tables are not used. </p>

<p>Definition at line <a class="el" href="IndexIVFPQ_8h_source.html#l00235">235</a> of file <a class="el" href="IndexIVFPQ_8h_source.html">IndexIVFPQ.h</a>.</p>
</div><h2 class="groupheader">Member Enumeration Documentation</h2>
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          <td class="memname">enum <a class="el" href="structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70">faiss::IndexIVFPQCompact::Alloc_type_t</a></td>
        </tr>
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</div><div class="memdoc">

<p>how were the compact tables allocated? </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="ab2698c5d65644a171c53ffe39e420b70a3d58d7b26146791f0fe34b35a9b0fd95"></a>Alloc_type_none</em>&nbsp;</td><td class="fielddoc">
<p>alloc from outside </p>
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="ab2698c5d65644a171c53ffe39e420b70acf2d6ba8878a2778383adc32593ba8e6"></a>Alloc_type_new</em>&nbsp;</td><td class="fielddoc">
<p>was allocated with new </p>
</td></tr>
<tr><td class="fieldname"><em><a class="anchor" id="ab2698c5d65644a171c53ffe39e420b70a38c1b1ed9ebdbd4b0047be13080094bb"></a>Alloc_type_mmap</em>&nbsp;</td><td class="fielddoc">
<p>was mmapped </p>
</td></tr>
</table>

<p>Definition at line <a class="el" href="IndexIVFPQ_8h_source.html#l00240">240</a> of file <a class="el" href="IndexIVFPQ_8h_source.html">IndexIVFPQ.h</a>.</p>

</div>
</div>
<h2 class="groupheader">Member Function Documentation</h2>
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          <td class="memname">void faiss::IndexIVFPQCompact::search_knn_with_key </td>
          <td>(</td>
          <td class="paramtype">size_t&#160;</td>
          <td class="paramname"><em>nx</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const float *&#160;</td>
          <td class="paramname"><em>qx</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const long *&#160;</td>
          <td class="paramname"><em>keys</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const float *&#160;</td>
          <td class="paramname"><em>coarse_dis</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="structfaiss_1_1HeapArray.html">float_maxheap_array_t</a> *&#160;</td>
          <td class="paramname"><em>res</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">bool&#160;</td>
          <td class="paramname"><em>store_pairs</em> = <code>false</code>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td> const</td>
        </tr>
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<span class="mlabels"><span class="mlabel">override</span><span class="mlabel">virtual</span></span>  </td>
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<p>search a set of vectors, that are pre-quantized by the IVF quantizer. Fill in the corresponding heaps with the query results.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">nx</td><td>nb of vectors to query </td></tr>
    <tr><td class="paramname">qx</td><td>query vectors, size nx * d </td></tr>
    <tr><td class="paramname">keys</td><td>coarse quantization indices, size nx * nprobe </td></tr>
    <tr><td class="paramname">coarse_dis</td><td>distances to coarse centroids, size nx * nprobe </td></tr>
    <tr><td class="paramname">res</td><td>heaps for all the results, gives the nprobe </td></tr>
    <tr><td class="paramname">store_pairs</td><td>store inv list index + inv list offset instead in upper/lower 32 bit of result, instead of ids (used for reranking). </td></tr>
  </table>
  </dd>
</dl>

<p>Reimplemented from <a class="el" href="structfaiss_1_1IndexIVFPQ.html#ad5ae3ae94b4776291f6abee5110c7c0c">faiss::IndexIVFPQ</a>.</p>

<p>Definition at line <a class="el" href="IndexIVFPQ_8cpp_source.html#l01473">1473</a> of file <a class="el" href="IndexIVFPQ_8cpp_source.html">IndexIVFPQ.cpp</a>.</p>

</div>
</div>
<hr/>The documentation for this struct was generated from the following files:<ul>
<li><a class="el" href="IndexIVFPQ_8h_source.html">IndexIVFPQ.h</a></li>
<li><a class="el" href="IndexIVFPQ_8cpp_source.html">IndexIVFPQ.cpp</a></li>
</ul>
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